And the purchaser of a friend's dental practice just dropped dead in his mid-40's. My wife went at 54 and my mother at 87 after taking SS at 62. Just 'anecdata', and I can contribute more, although it's no more informative and helpful in the decision than anyone else's examples.My father literally dropped dead on the golf course at age 73, so I am leery about waiting until 70 to collect.
I'll take mine at 65-66 as I am unmarried, have 2 kids I want to leave money to, and living off accumulated savings/investments
The best we can do is make an educated guess, hope we made the right call, and live without complaint if we didn't.